Control mechanism



March 16 1926.

4 F. BALZER CONTROL MECHANISM Filed Sept. 10

2 Sheets-Slaget 1 March 16 1926. 1,576,622

. F. BALZER CONTROL MECHANI SM Filed Sept. 10, 1924 2 Sheets-Sheet 2 Patented Mar. 16, 1926.

uNlrn-o s FRITZ. BAIIZE'R, OF. MOLINE', ILLINOIS, ASSIGEQBI T BAUNDB/Y l r ('30., LTD 0 1 .C HICAGOfILLINYOIS, AQQQZBLPQBTATION i 1,576,622 PA/TRENT i common MECHANISM.

' inplication filedseptemher 1Q, 19M. Serial N-o,"23,6 ,8 17.

I 0 all to hom it may concern Be it known that I, FRITZ.

BALZER, a citizen of the United States,residing at-Molin in the county of Rockllslan'd and State or M5 Illinois, have, invented certain new andnseful Improvements in Control "Mechanism, of which the following is a specification.-

The present invention. relates to control mechanism.

Before proceeding with a the'objects of the present inv statement, of entlon and a description of said invention .it -may I be stated that the invention isparticular-ly ap plicable to devices in which it .is desirable to bring a moving member to restat a me determinedpoint Without undue shocksv and without requiringparticular skill upon the part of the operator. Such mechanism is represented in the rotary cylinder of a washing machine. As is well known, common types of washing machines comprise an outer casing or shell which tary cylinder. Said cylinder encloses a roencloses the goods to be Washed and,in order to permit insertion and removal of said goods, said cylinder is ordinarily provided with ai'door.

The enclosing casingor shell vided with a door to permit interior of or casing.

cess to the cylinder door may r is also pro- .aecess toithe the cylinder through the shell In order to bring the rotary 'eyl: inder to a stop in such a position that'aceadily be had through the casing door, various control means have been devised. In mon types of rotary cylinder certain comwashing "machines means have been provided'whereby the cylinder after rotating apredetermrned number of-revolutions in one direction .is

automatically reversed in direction and after a predetermined number of revolutions is again reversed, this reversing process being maintained throughout the wash ing operation. \Vith certain control devices, it handled by an unskilled operatonitt're quently attempting to bring the rotary stop in the happens that just as the operator is cylinder to a proper position by inching same r toward said pOS1t1OI1,' tl18 auto matic mechaposition for ea'ch compartment. WVashin'g machines are commonly provided with mechanism which renders it impossible to rotate the cylinder unless the door of'the enclosingca sing or'shell I is closed. In the case'of a"ro,tary cylinder having a plurality of compartments as- 'above referred f to, it. is

a tedious operation to close the, casing'or V shell'doors when 1t11s requiredto rotate the 7 cylinder atractionalpart of a revolution, particularly if the stopping of tlre'cylirfder rotation is controlled bymeans of automatic mechanism, which is necessarily slower of operation than is desired when movement through'only afractiohalpart of a revolution'i's required. 'The'present application is acontinuation as to common subject matter of the prior'applioation above referred to.

The above example is chosen as an illustrationto indicate the sort of problemxwhi-ch applicant has solved by the present 'inven tion. It will be understood as the description proceeds," however, that the invention isnotilimited to washing" machinesor to any partieularftype of machine," but is :of much broader application,

An object of the present invention 5 is to provide control mechanism for automaticallybrin'gin'g a moving member to a stop in a predetermined position. i

"A further object is "to provide control mechanism applicable. to' the rotary cylinder of a washing machine 'for automatically bringing'said cylinder to a stop ata predetermined position.

A further object is to provide control mechanism which upon, a simple actuation of *a'single'member will control the. movement of'aimoving member to slow down the 'speed'ot said member andthereafter to positively 'bringisaidimember:to a stop-lat a'predetermined position. I

A further object is to provide automatic 'stoppingmechanism for bringing a room,-

her to a stop at a predetermined position with a minimum of shock.

A further object is to provide control mechanism applicable to the rotary cylinder of a washing machine for automatically bringing said cylinder to a stop at a predetermined position, said mechanism including means by which the ordinarily provided electrical interlock between the cylinder and the enclosing casing may be shunted when desired. 7

Further objects will appear as the description proceeds.

Referring to the drawings Figure 1 is a sectional view of control mechanism embodying the principles of the present invention;

Figure 2 is a view taken along the plane indicated by the arrows 22 of Figure 1;

Figure 3 is a'view illustrating the position of certain operating parts under running conditions;

Figure 4 is a view of the parts shown in Figure 3 after a simple actuating movement has been imparted toa member constituting part of the control mechanism but before any speed changes have been accomplished;

Figure 5 is a view showing the parts in an intermediate stage during the stopping operation; v

Figure 6 shows the parts at the moment when stoppage has been accomplished;

Figure 7 illustrates a detail of the actuating mechanism, being a view taken along the plane indicated by the arrows 77 of Figure 1;

Figure 8 indicates certain switch mechanism;

Figure 9 represents diagrammatically an electrical circuit which is illustrative of electrical circuits which may be used in connection with the present invention; and

Figure 10 represents more or less diagrammatically a washing machine cylinder provided with a plurality of compartments disposed around the axis of the cylinder.

The numeral 11 indicates a housing which may be provided with the cover 12. Mounted outside of the cover 12 is the handle 13, which is adapted to have a swinging movement about the axis of the shaft 14:. The outer side of the cover 12 may be provided with abutment means taking the form of ratchet teeth, said abutment member being indicated by the numeral 13. The handle 13 may be provided with springpressed control mechanism which will yield ingly hold the handle 13 in predetermined positions relative to the cover 12, several of said positions being shown in Figures 3 to 6 inclusive. The details of the springpressed mechanism cooperating with the handle 13 need not be described in detail herein inasmuch as structures suitable for the purpose are well known to those skilled in the art and inasmuch as such details form no part of the present invention. It may be stated however, that the handle 13, though yieldingly held in a predetermined position, may be readily moved by means, to be referred to hereinafter from said predetermined positions to an adjacent predetermined position. The numeral 15 indicates a stop member fixed with reference to the cover 12 and the numeral 16 indicates a pointer rigid with respect to the handle 13 for convenience in indicating the position of said handle 13,

The handle 13 is fixedly mounted upon the sleeve 17, which is rotatably mounted in the cover 12, which sleeve, as the parts are viewed in Figure 1, extends to the left to the plane indicated by the numerals 77 in said Figure 1. Fixedly mounted upon the sleeve 17, as for example by means of a key 18 which is held in place by a set screw 19, is the escape lever 20. Said escape lever 20 has the function when the handle 13 is in a predetermined position, which, for con venience, may be termed the running position, to hold the weight lever 21 in a pre determined position, as shown in Figure Said weight lever 21 is fast upon the shaft 22, which extends in a line substantially parallel with the shaft 1 1. The shaft 22 has rigidly mounted thereon the pawl 23 adapted to have cooperative relationship with the ratchet segment 24. The ratchet segment 24 is fixedly mounted upon the sleeve 25, which extends to a boundary marked by the right-hand face of the boss 26 forming part of the ratchet segment 24- as the parts are viewed in F igure 1. Also fixedly mounted upon the sleeve 25 is the lever arm 27, which carries the roller 28 adapted to cooperate with the cam member 29. 'The cam member 29 may move in synchrenism with a moving member to be controlled. Referring to washing machines, said cam member 29 may be mounted to rotate with the cylinder of a washing machine. Said cam member 29 is provided with a plurality of raised portions corresponding to the compartments of a washing machine cylinder. One of said raised portions is illustrated in Figures 2 to S inclusive and is indicated by the numeral 30. Said raised portions 30, as the cam 29 rotates, will operate the lever 27 to communicate motion to the sleeve and ratchet segment 24.

The shaft is rotatably mounted upon the lever 31. Said lever 31 is bifurcated. having the two legs 32 and 33, the leg 32 being rotatably mounted upon the sleeve 25 and the leg being fixedly connected to the shaft 11-. The upper portion of the lever 31 is also bifurcated to provide arms 34-+3ah which carry the pin for pivotally mounting the rod 36, which may control brake mechanism cooperating with the member whose speed is to be controlled, namely, the member in synclni'onism with which the cam 29 rotates,'that is, in the illustration chosen for this description, the washing machine cylinder. It will be clear that when the cam 29 is rotated, engagement of the highportions 30 of said cam with the roller 28 will result in an oscillating movement of arm 27, which oscillating movement will be communicated to the ratchet segment 24. If the pawl 23 is in a position to cooperate with the ratchet segment 24, the net result of the oscillation of the arm 27 will be a step-by-step movement of pawl 23 and lever 31 in a left-hand direction as the parts are viewed in Figures 2 to 6 inclusive. Fixedly mounted upon the lever 91 is the electrical control block 37, which may have an arcuate surface having the center line of shaft 14 as an axis. The arcuate surface of the central block 37 carries the contact members 38 and 39, which are adapted to be selectively engaged by the contact fingers 40, 41, 42 and 43, which contact fingers may be supported in any preferred way within the housing 11. The electrical connections of the contacts 38 and 39 and the contact fingers 40, 41, 42 and 43 need not be described in detail herein, nor need the circuits controlled thereby be described, it being suflicient to state that when the contact members and the contact fingers are in one predetermined relationship the circuit through the driving motor for the cam 29 will be open; in another relationship said circuit will be con-- nected to provide a low speed for said driving motor; and in another relationship said motor will be connected for full speech Fixedly mounted upon the shaft 14 is the lever adapted to yi-eldingly control movement of the handle 13. Details of this control do not form any part of the present invention. It may be stated, however, that when the shaft 14 is rotated, said lever 44 will yieldingly carry the handle 13 through the degree of movement imparted to said shaft 14.

From an inspection of Figure 7 it will be I clear that the hub portion of escape lever 20 and the hub portion of the leg 33 of lever 31 are provided with abutting portions 45 and 46, which abutting portions-limit relative rotation between said escape lever 20 and lever 31. The construction of the abutting portions 45 and 46 affords lost motion between said escape lever 20 and lever 31, which lost motion is indicated by the angle X in Figure 7.

Figure 9 indicates an electrical circuit which may be used in connection with the rotarycylinder of a washing machine or in connection with other mechanism whose motion is to be controlled. The numeral 47 indicates a oriving motor and the numeral 48 indicates a switch box. The 1111-. meral 49 indicates certain control mechanism for varying the connections to motor .47, which control mechanism 49 may be operated by the electrical motor 50, which may receive its energization from anypreferred source. The numerals 38 and 39 indicate the contact members illustrated in greater detail in Figure 8, and the contact fingers 49, 41, 42 and 43 are shown incooperation with said contact members 38 and 39. The numeral 51 indicates an electric. switch controlled by'the doorof the enclosing shell. or casing. Such a switch is commonly provided upon washing machines of the rotary type for preventing the rotation of the cylinder until said shell or casing door is closed. The numerals 52-52 indicate power lines leading tothe switch box 48.

Figure 10 illustrates more or less diagrammatically a multi-compartment cylin der mounted within a casing. Said cylin' der, which is indicated by the numeral 58, is provided with the radially disposed'partitions 54* 4 providing three compartments disposed around the axis of rotation of said cylinder. Access to each of said compartments is had through the doors 55 55, which doors may be hinged on axes 56 56 disposed parallel with the axis of rotation of the cylinder. The enclosing shell or casing for the cylinder 53 is indicated by thenumeral 57. Said shell or casing is provided with the door 58. The door 58 is illustrated as being swingingly mounted, but it will be understood that the particu lar mounting of the shell door is immaterial insofar as the present invention is'concerned. Said door 58, however, as indicated above, controls the'electric switch 51. \Vhen said door 58 is in open position the switch 51 will beheld in its open position as indicated in Figure 9. hen the door g 58 is in closed position the switch 51 will be in closed position. Shunting the switch 51 is the switch 59, which may be manually operable. It will be clear that by operation of the switch 59 the controlling circuits of the washing machine may be controlled independently of the switch 51, that is to say--independently of the door 58 of the enclosing shell or casing.

In explaining a mode of operation of the above described embodiment of the present number of revolutions and then reverse its movement for a predetermined number of revolutions, proceeding through this cycle as long as certain predetermined connections are maintained. Switch mechanism is also well known having the function of causing the motor to run at different speeds or to be unencrgizcd. For the purpose of chang ing the connections to the motor 417 to produce changes in the direction of the rotation of a washing machine cylinder, as above described, the controller 4.9 may be driven by the small motor 50. For the purpose of controlling the spec l of the electric motor -17 the electric switch mechanism comprising the members and 39 and the contact fingers 1-0, 4:1, 42 and 13 are provided.

As referred to above, the connections of said contact fingers 10, all, 41-2 and 43 will be controlled in response to the movement of the control block 37, which, as will be explained in detail hereinafter, is responsive to the action of ratchet segment 24 and the pawl 23. In the position illustrated in Figure 9 all of the contact fingers 40, 11, 42 and 413 are disconnected from circuit and the driving motor l7 will be deenergized. When the contact members 38and 39 have been moved to a position in which the contact fingers 41 and 12 are bridged by contact member 39, a relatively slow speed of rotation will result in the electric motor 47. ll hen contact members 38 and 39 have been moved to a position in which contact fingers :i-.O and 11 are bridged by contact member 38 and contact fingers 41-2 and 43 are bridged by contact member 39, full speed of the elec tric motor 17 will result.

lVhen it is desired to produce normal op eration of the moving mechanism carrying the cam 29, which, for convenience, in this specification has been referred to as a washing machine cylinder, the handle 13 will be moved to the position indicated in Figure The handle 1.3 is rigidly united to the escape lever 20 and when the handle 13 is in the position shown in Figure 3, said escape lever 20 will be held in a substantially vertical position. In this position the escape lever 20 abuts against the weight lever 21 so that said weight lever is held out of its depending position. The weight lever 21 is rigidly united to the pawl 23 and at this time said pawl 23 is heul out of engagement with the teeth of the ratch segment 24-. By reason of the abutting relative position between the portions 4-5 and 16 of the escape lever 29 and the lever 31 respectively, movementof the handle 13 to its position shown in Figure 3 will have caused said lever 31 to move in a clockwise direction, as indi cated in F igure 3, to the position shown. lly reason of the lost motion between escape lever'2O and lever 31, which lost motion is indicated by the angle X in Figure 7, the lever 31 will lag behind handle 1.3 by the angularity indicated by said letter K. ll hen the handle 13 is in the position referred to, that is-the position shown in Figure 3, the rod 36 will be held over in its righthand position whereby to cause the release of the brake mechanism controlled by said rod. At this time, also, the switch mechanism mounted upon the holder 37 will be at its limit of clockwise movement, whereby the spung fingers 411 and 4-2 will be in en gagement with the contact member and the spring fingers 42 and will be in engagement with the contact member 39. The conditions immediately above referred to are those for producing normal operation of the mechanism carrying the cam 29.

lVhen it is intended to stop the rotating mechanism including the cam 29, the operator will move the handle 13 in a counterclockwise direction through the angle X to the position shown in Figure 4t. By reason of the lost motion between the abutment portions 45 and 16 of the escape lever 20 and lever 31 respectively, said movement of handle 13 in a counterclockwise direction will have no immediate effect upon said lever 31 or the rod 36 connected to said lever 31.

The movement referred to will, however, withdraw the escape lever 20 from holding relationship with the weight lever 21, whereby the pawl 23 rigidly connected to said weight lever 21; will be allowed to gravitate to a position in which said pawl 23 has cooperative relationship with the ratchet segment 24. As explained above, the ratchet segment 24 is rigidly united to the rocker arm 27 which cooperates with the cam 29 of the member to be controlled. As said cam 29 rotates, any one of the high portions 30 thereof, whenever said high por tion comes in contact with the roller 28, causes an oscillating movement of the arm 27 and ratchet segment 24. Figure 1 represents conditions after the handle 13 been moved through the angle X but before a high portion 30 of the cam 29 has opcrated the arm 27.

Figure 5 represents conditions at the instant that a high portion 30 of cam 29 has raised the arm 27 to the limit of movement. This upward movement of the arm 27 as the parts are viewed in Figures 3 to 6 inclusive, causes the actuation in a counterclockwise direction of the ratchet segment 24, which ratchet segment moves the its pawl 23 and lever 31 in a counterclockwise direction to the position shown in Figur' Inasmuch as the lever 31 is rigidly connect ed to the shaft 14, which shaft ll carries the lever 44, the net result of moving the lever 31 to the position shown in Figure 5 will be actuation of lever 4-1. As explained above, lever is connected to handle 13 to control same so that actuation of lever 44; will result in actuation of handle 13 to a substantially vertical position, as shown in Figure 5. Movement of lever 31 results in the pulling of rod 36 as viewed in Figure 5, whereby to lightly apply the brake mechanism controlled by said lever. 'lhe switch mechanism carried'by the switch block37, which block ismounted upon the shaft 22 connected with lever 31, will not be in the position indicated in Figure 8, in which contact fingers 41 and 42 engage with the switch contact 39 and contact fingers 40 and 43 are disconnected from circuit, These connections may be utilized to slow down the speed of the motor 17 which drives the mechanism moving in synchronism with the cam 29. In case the control mechanism forming the subject matter of the present invention is used in connection with washing machine cylinders of the reversing type, said changed electrical connections may be utilized to eliminate the reversing" feature whereby to insure against the possibility of the washing machine cylinder reversing its direction of rotation just prior to, the time that the washing machine cylinder is being brought to a stop. Figure represents in full lines conditions when the arm 27 is at the top of its stroke, conditions when the arm 27 is at the bottom of its stroke being shown in dotted lines. It will be clear that after the arm 27 has actuated the remainder of the mechanism to move said mechanism to the position shown in Figure 5, a lowering-movement of arm 27 will withdraw the ratchet segment 24 to the positionindieated in dotted lines in Figure 5, in which position the second tooth of said ratchet segment, as said teeth are counted in a counterclockwise direction, will be in a position to operate the pawl 23. e I H \Vhen cam'29 rotates suiiiciently to again raise the arm 27 to the top of its stroke, said arm acting through the ratchet seg ment 24 will move lever 31 another step a counterclockwise direction. The handle 13 will be moved synchronously with the lever 31 by reason of the connection of lever 31 with shaft 1a and lever 44, which lever 44,- operatesthe handle 13. In the position shown in Figure 6, that iswhen a high portion 30 of the cam 29 has moved the arm 27 to the top of its stroke, the switch mechani'sm carried by the switch block 37 will be out of contact with the fingers 10, 41, 4:2 and 43, whereby the electrical circuit of the drivingmotor 47 will be broken. At this time, also, the rod 36 will be at the limit of its movement in a left-hand direction as the parts are viewed in Figures 3 to 6 inclusive, whereby the brake mechanism controlled by said rod 36 will be fully applied. It will be clear, therefore, that when the parts have been moved to the position shown in Figure 6 the driving effect of the motor 457 will be nullified and the brake mechanism controlled by rod 36 will positively bring toa stop the" moving mechanism carrying the cam 29. I p i It will be observed from the discussion above, that in producing automatic stopping of the moving mechanism, the operatornee'd perform only a simple operation on a single member, that is to say-the operator will move the handle 13 through. a small angle represented by the" letter X. This actuation, since it allows pawl 23 to move in: a cooperative relationship with the ratchet segment 24, will put the partsin position so that the speed oftlie drivingmotor will be reduced and the brakerod 36 will be actuated .to lightly apply the brake meet; ani sm. Therefore, when the cam 29 results in further actuation of the arm 27, the rod 36 will be actuated to fully apply the brakes and electrical current of the driving motor 1 will be disconnected.

Though the machine described above is designed primarily for the automatic stopping of moving mechanism at predeter mined points without shocks, said mechanism adapts itself for hand operation. if circumstances should render immediate stoppage desirable. Should it be desired to stop the machine at any instant, all that is necessary is to move the handle 13 tothe position shown in Figure 6. By reason or r the abutting relation between portions a5 and 4L6 of the escape lever 201 m lever 31 respectively, said lever will be nioved to the position shown in Figure 6, in which the electrical connections to themotor :7 will be broken throughthe contact fingers-4 0,

11, 12 and 43 and the brake niechanisin will i be fully applied by reason of the movement of rod 36 to the left, as shown in Figiire2. If it should be desired to merely cut down the time stopping, the handlel13 may be moved from its running position as shown in Figure 3, to the vertical position shown in Figure 5, which will so locate the parts that when the next high part 30 of the cam 29 again engages roller 28 of the arm 27', the mechanism will be stopped by reason of the fact that the raising of the arm 27 will bring the parts into the position shown in Figure 6, in whichthe electrical circuit of the motor is interrupted and the rod 36 applies the brake-mechanism.

It is conceivable'that due to accident or due to the fact thatthe cam 29 is not prop; erly positioned relativetothemoving mechanism'to be controlled, said moving mec-hanism might not stop in J exactly the proper position. I To provide vfor this contingency the switch can be used as a regular inching switch by moving the handle 13 from full runningposition to the position shown in Figurel, after which'the next high portion" 30 of the cam 29 which engages roller 28, will move the mechanism to produce slow movement of the member carrying cam 29 and light braking effect of rod 36, as shown in Figure 5. By proper manipulation of handle 13 between the position shown in Figure 5 and the position shown in Figure (3, the mechanism can be inched along and readily stopped at any desired position.

As referred to above, when the rotating cylinder has been brought to rest with one of the compartment doors 55 in registry with the opening of door 58, access may be readily had to said compartment. lVhen it is desired to move the cylinder through part of a revolution whereby to gain access to another compartment, the cylinder door 55 will be closed but the shell door 58 may remain open. The operator will then move the master switch lever 18 to the position shown in Figure 5 and close the switch 59 (Figure 9). The cylinder will rotate until the next high portion of the cam 2-9 operates the lever 27. The raising the lever 27 by said; next high portion will result in the oscillation of the segment 34, resulting in the movement of the switch block 37 to open the circuit of the driving motor. Inasmuch as the high portions 30 are located in position to cause the stoppage of the cylinder at the proper points relative to the door 58, each compartment may be unloaded in succession without the necessity of closingthe shell door 58 between succe; sive movements of the cylinder.

Though a preferred embodiment of the present invention has been described in detail, it will be clear that many modifications will occur to those skilled in the art. It is intended to cover all such modifications that fall within the scope of the invention as defined by the appended claims.

lVhat is claimed is 1. In a washing machine, a shell including a door, a rotary cylinder mounted within said shell, said cylinder having a plurality of circumferentially spaced doors, propelling means for said cylinder, electrical controlling means for said propelling means, said electrical controlling means being responsive to the position of said shell door, operating means controlled by said propelling means and switch and brake means controlled by said operating means, means responsive to the movement of said cylinder for controlling the relationship between said propelling means and said operating means, and means for nullifying the cooperative relationship between. said shell. door and said electrical controlling means.

2. In a washing machine, in combination, a shell including a door, a rotary cylinder having a plurality of circmnferentially disposed doors each adapted to register with said shell door, brake control means for said cylinder, electric switch means, oper ting means for said brake control me said switch means, automatic me for moving said operating means, d automatic mechanism comprising a movable member responsive to the motion of said 'ylinder, means for interrupting the operative connection between said motion rc sponsive means and said operating means, propelling means for said cylinder, trical controlling circuits for said propr-lling means, said electrical controlling means including a circuit closer responsive to the position of said shell door, and means for shunting said circuit closer whereby said propelling means may operate independ ently of said shell door.

3. In combination, an enclosing member including a door, a rotary member within V e ecsaid enclosing member, said rotary member having a plurality of compartments each of which is adapted to be brought into regis try witn said door, propelling means for said rotary member, stop mechanism for said rotary member comprising bralre control means, electric switch means, operating means for said brake control means and said switch means, means for moving said operating means in rogrcssive steps, a control member for controlling the connection between said moving means and said operating means, an electrical controlling circuit for controlling said propelling means in response to the position of said door, and means for nullifying the cooperative relationship between said door and said controlling circuit.

4-. In combination, an enclosing member having a door, a rotary member within said enclosing member, said rotary member hav ing a plurality of compartments each adapted to be brought into registry with said door,- propelling mechanism for said rotary member, an electrical controlling circuit for said propelling mechanism, stop mechanism for said rotary member, said stop mechanism comprising brake control means, electric switch means, opera in means for said brake control means and said switch means, means for commimicat ing intermittent motion to said operating means, said communicating means being rcsponsive to the movement of said rotary member, and an actuating member for controlling the relation between said operating means and said. communicating means, said electrical controlling circuit incl uding a circuit breaker responsive to the position of said door and means for shunting said circuii breaker.

5. In combination, an enclosing member including a door, a rotary member mounted within said casing and having a plurality of compartments each adapted to be held in registry with said door, propelling mechanism for said rotary member, an electrical controlling circuit for said propelling means, stop mechanism including brake control means, electric switch means, operating means for said brake control means andsaid switch means, means for communicating progressive movement to said operating means, and gravity responsive means for controlling the relationship between said communicating means and said oper-' ating means, said electrical controlling circuit including a circuit breaker responsive to the position of said door and means for nullifying the effect of said circuit breaker.

6. In combination, an enclosing member including a door, a rotary member mounted within said enclosing member and having a plurality of compartments each adapted to be brought into registry with said door, propelling means for said rotary member, an electrical controlling circuit for. said propellingmeans, stopmechanism compris ing, in combination, brake control means, electrical switch means, operating means for said brake control means and said switch means, means for communicating a'progres= sive movement to said operating means,

gravity responsive means for controlling the relationship between said communicating means and said operating means, an actuating member for said gravity responsive means for permitting said communicating means to progressively move said operating'means, said electrical controlling circuit being responsive to the position of said door, and means for nullifying the cooperative relationship between said controlling circuit and said door.

7. In combination, an enclosing member having a door, a rotary member within-said enclosing member, said rotary member having a plurality of compartments each adapted to be brought into registry with said door, propelling means for said rotary member, an electrical controlling circuit for said propelling means, stop mechanism comprising brake control means, electric switch means, operating means for said brake control means and said switch means, means operating in synchronism with said rotary member for communicating motion to said operating means, gravity responsive means for interrupting the driving relation between said communicating means and said operating means, an actuating member having a lost motion connection with said operating means for controlling said gravity responsive means, said electrical controlling means being responsive to the position of said door, and means for interrupting the cooperative relationship between said controlling circuit and said door.

In combination, an enclosing member having a door, a rotary member within said enclosing member, said rotary member having a plurality of compartments each adapted to be brought into registry with said door, propelling mechanism for said rotary me nber, an electrical controlling member for said propell'ng mechanism, stop mechanism for said rotary member, sai'il' stop mechanism comprising brake control means, electric switch means, operating mechanism for said brake control mcansand said switch control means, an actuating member having lost motion connection with said operating means, means for communicating a progressive movement t said oper ating means, means responsive to said actuating means for controlling the operativeness of said communicating means, said electrical controlling circuit being responsive to the position of said door, and means for nullifying the cooperative relationship between said door and said electrical controlling circuit- 9. In combination, an enclosing member having a door, a rotary member within said enclosing member, said" rotary member having a plurality of compartments each adapted to be brought into registry with said door, propelling mechanism for said rotary member, an electrical controlling circuit for said propelling mechanism, stop mechanism for said rotary member, said stop mechanism comprising brake control means, electric switch means, operating means for said brake control means and said switch means, means for communicat mg a progressive movement to said operating means, means forcontrolling the oper ativeness" of the connection between said communicating means and said operating means, an actuating membeiffor controlling the position of said controlling means and having a lost motionconnectionwith said operating means, said electrical controlling circuit being responsive to the position of said door, and means for nullifying the cooperative relationship between said electrical controlling circuit and said door.

1( In combination, an enclosing member having a door, a rotary member within said enclosing member, said rotary member having a plurality of compartments each adapted to be brought into registry with sa1d door propelling means for said rotary member, an electrical controlling circuit for said rotary member, stop mechanism for said rotary member, said stop mechanism including brake control means, electric switch means, an operating member for said brake control means: and said switch means, means for communicating a progressive movement to said operating means, said movement communicating means including a member for interrupting the driving relation between said moving communicating means and said operating member, an actuatmg member for controlling said interrupting means, said actuating member having a lost motion connection with said operating member through which said actuating member may actuate said operating member in opposite direction, and connections between said communicating member and said actuating member including said operating member, whereby said communicating mem ber may operate said actuating member only ailiter said actuating member has been moved to a certain predetermined position, said controlling circuit being responsive to the posit-ion of said door, and means for nullitying the responsiveness of said controlling circuit to said door.

11. In combination, an enclosing member having a door, a rotary member within said enclosing member, said rotary member having a plurality of compartments each adapted to be brought into regist y with said door propelling means for said rotary member an electrical controlling circuit for said rotary member, stop mechanism for said rotary member, said step mechanism including brake control means, electric switch means, operating means for said brake control means and said. electric switch means, means for communicating motion to said operating means in response to movement of the member to be stopped, said communicating means including a member adapted to interrupt the driving relation between said communicating means and said operating means, an actuating member for controlling said interrupting means and having a lost motion connection with said operating means, said communicating means, operating means and actuating member all having portions co-axially mounted, and means controlled by said operating means for moving said actuating member, said controlling circuit being responsive. to the position of said door, and means for nullitying the responsiveness of said controlling circuit to saiddoor.

12. in combination, an enclosing member having a door, a rotary member within said enclosing member, said rotary member having a plurality of compartments each adapted to be brought into registry with said door propelling means for said rotary member, an electrical controlling circuit for said rotary member, stop mechanism for said rotary member, said stop mechanism including a member the motion or which is to be stopped, brake control means, electric switch means, operating means for said brake control means and said switch means, a shaft, said operating means being mounted for rotation about said shaft as an axis, another sha'i't carried by said operating means, pawl means mounted upon said other shaft, ratchet means mounted for movement about said first mentioned shaft as an axis, actuating means for said pawl means mounted "for movement about said first mentioned shaft, means mounted for movement about said first mentioned shaft for com nmnicating oscillating movement to said operating means in response to movement of id member to be stopped, said operating means and said actuating means having peripherally abutting portions permitting lost motion between said actuating means and said communicating means, said operating means being rigidly connected to said shaft, means upon said shaft for communicating motion to said actuating member, said controlling circuit being responsive to the position of said door, and means for nullit'ying the responsiveness of said controlling circuit to said door.

Signedat Moline, Illinois, this fourth day of September, 1924.

FRITZ BALZER. 

